Cardwell, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cardwell, a community in Jefferson County, Montana.
This Afternoon
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then showers and thunderstorms likely. Cloudy. High near 72, with temperatures falling to around 68 in the afternoon. East southeast wind around 7 mph. Chance of precipitation is 70%.
7-day forecast for Cardwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Chance Showers And Thunderstorms | 7 mph ESE | 74% |
| Tonight | 50°F | Showers And Thunderstorms | 3 to 8 mph WNW | 100% |
| Saturday | 59°F | Showers And Thunderstorms | 6 mph NW | 90% |
| Saturday Night | 46°F | Chance Light Rain then Patchy Fog | 2 mph SSW | 52% |
| Sunday | 70°F | Patchy Fog then Mostly Sunny | 2 mph SW | 4% |
| Sunday Night | 44°F | Mostly Clear | 0 to 3 mph SSE | 0% |
| Monday | 77°F | Sunny | 2 mph SW | 0% |
| Monday Night | 46°F | Mostly Clear | 1 mph W | 1% |
| Tuesday | 77°F | Sunny | 2 mph SSW | 1% |
| Tuesday Night | 47°F | Partly Cloudy | 2 mph WSW | 2% |
| Wednesday | 78°F | Sunny | 2 to 6 mph SW | 1% |
| Wednesday Night | 47°F | Mostly Clear | 1 mph SSW | 2% |
| Thursday | 79°F | Sunny | 2 mph SSW | 1% |
| Thursday Night | 47°F | Mostly Clear | 1 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Cardwell (45.865, -111.964). Updated through the day.
Growing snapshot for Cardwell
Last spring frost
May 9
First fall frost
Sep 27
Growing season
139 days
Hardiness zone
5a
More local growing data for Cardwell: nearby ZIP 59721 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Trident, Mt (19.7 mi from Cardwell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.